bug-groff

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2026/10/01 [bug #68733] [mm] `mmroff` doesn't propagate `groff` error exit status G. Branden Robinson
2026/10/01 [bug #68727] [PATCH] [mm] a simple use of `INITR` with `mmroff` stopped working in groff 1.24.0 G. Branden Robinson
2026/10/01 [bug #68716] doc/doc.am: per POSIX, any rule for a target disables any single-suffix rule for it G. Branden Robinson
2026/09/30 [bug #57638] [me] regression of correct 1.22.3 `nm` macro behavior G. Branden Robinson
2026/09/30 [bug #57638] [me] regression of correct 1.22.3`nm` macro behavior G. Branden Robinson
2026/09/30 [bug #64466] [PATCH] [ms] poorly diagnosed diversion error G. Branden Robinson
2026/09/30 [bug #68220] [libgroff] repo build with autoconf 2.73 fails due to `matherr()` having K&R-style declaration, disallowed in ISO C23 G. Branden Robinson
2026/09/30 [bug #68220] [libgroff] repo build with autoconf 2.73 fails due to `matherr()` having K&R-style declaration, disallowed in ISO C23 Hanspeter Niederstrasser
2026/09/30 [bug #68684] [hpftodit] ASAN reports heap buffer overwrite and overread when given crafted TFM file G. Branden Robinson
2026/09/29 [bug #68651] [UPGRADE] redesign HTML production G. Branden Robinson
2026/09/29 [bug #68721] doc/groff.texi.in: reëncode in UTF-8 G. Branden Robinson
2026/09/29 [bug #68192] [long-term] check all dynamic ("heap") memory allocations for success G. Branden Robinson
2026/09/29 [bug #68680] [PATCH] [hpftodit] 1-byte heap buffer overwrite G. Branden Robinson
2026/09/29 [bug #68726] [grohtml] migrate `pre-grohtml` from fprintf(3) to `fatal()` where appropriate G. Branden Robinson
2026/09/29 [bug #68727] [mm] a simple use of `INITR` with `mmroff` stopped working in groff 1.24.0 G. Branden Robinson
2026/09/28 [bug #68725] [refer] provide a "safer mode, " and possibly default to it anonymous
2026/09/28 [bug #68724] Bionic libc bellyaches about use of strtok(3) G. Branden Robinson
2026/09/28 [bug #68724] Bionic libc bellyaches about use of strtok(3) Collin Funk
2026/09/28 [bug #68723] ImageMagick 7 bellyaches about `convert` command's name Dave
2026/09/28 [bug #68543] [man] want `CF` string or similar for user-configurable "example" font family Ingo Schwarze
2026/09/28 [bug #68724] Bionic libc bellyaches about use of strtok(3) G. Branden Robinson
2026/09/28 [bug #68723] ImageMagick 7 bellyaches about `convert` command's name G. Branden Robinson
2026/09/28 [bug #68543] [man] want `CF` string or similar for user-configurable "example" font family G. Branden Robinson
2026/09/27 [bug #68683] [PATCH] [eqn] off-by-one heap overread G. Branden Robinson
2026/09/27 [bug #68716] doc/doc.am: per POSIX, any rule for a target disables any single-suffix rule for it G. Branden Robinson
2026/09/27 [bug #68716] POSIX make: any rule for a target disables any single-suffix rule for it G. Branden Robinson
2026/09/27 [bug #68721] doc/groff.texi.in: reëncode in UTF-8 G. Branden Robinson
2026/09/27 [bug #68719] [soelim] appends a newline to included files lacking them, inconsistently with troff G. Branden Robinson
2026/09/27 [bug #68720] [pic, troff, libgroff] add stronger guards against giant memory allocations G. Branden Robinson
2026/09/27 [bug #68719] [soelim] .so'ed file without a trailing newline is handled differently Ingo Schwarze
2026/09/27 [bug #68719] [soelim] appends a newline to included files lacking them, inconsistently with troff G. Branden Robinson
2026/09/27 [bug #68719] [soelim] .so'ed file without a trailing newline is handled differently Dave
2026/09/26 [bug #68716] POSIX make: any rule for a target disables any single-suffix rule for it Ingo Schwarze
2026/09/25 [bug #68715] [groff] Some warnings when compiled with the gnulib module 'posixcheck' Bjarni Ingi Gislason
2026/09/23 [bug #68705] [gropdf] using `PDFPIC` to embed inkscape-produced PDFs causes failure Deri James
2026/09/22 [bug #68707] [eqn] `set` primitive should diagnose out-of-range parameter values G. Branden Robinson
2026/09/21 [bug #68708] [mdoc] `No` macro suppresses hyphenation Ingo Schwarze
2026/09/21 [bug #68708] [mdoc] `No` macro suppresses hyphenation G. Branden Robinson
2026/09/21 [bug #68708] [mdoc] `No` macro suppresses hyphenation G. Branden Robinson
2026/09/20 [bug #68708] [mdoc] `No` macro suppresses hyphenation G. Branden Robinson
2026/09/20 [bug #68708] [mdoc] `No` macro suppresses hyphenation Ingo Schwarze
2026/09/20 [bug #68708] [mdoc] `No` macro suppresses hyphenation G. Branden Robinson
2026/09/19 [bug #68708] [mdoc] `No` macro suppresses hyphenation Ingo Schwarze
2026/09/19 [bug #68706] [mdoc] `Fn` macro should suppress automatic hyphenation G. Branden Robinson
2026/09/19 [bug #68708] [mdoc] `No` macro suppresses hyphenation G. Branden Robinson
2026/09/19 [bug #68705] [gropdf] using `PDFPIC` to embed inkscape-produced PDFs causes failure G. Branden Robinson
2026/09/19 [bug #68707] [eqn] `set` primitive should diganose out-of-range parameter values G. Branden Robinson
2026/09/19 [bug #68706] [mdoc] `Fn` macro should suppress automatic hyphenation G. Branden Robinson
2026/09/18 [bug #68697] [tbl] emit argumentless `ti` request at start of table region, overlooked in commit 962f25ee85, 2026-04-30 Dave
2026/09/18 [bug #68696] [tbl] emit break request at start of table region Dave
2026/09/18 [bug #68697] [tbl] emit argumentless `ti` request at start of table region, overlooked in commit 962f25ee85, 2026-04-30 Dave
2026/09/18 [bug #68679] [PATCH] [libbib] uncontrolled memory allocation caused by missing bounds check on `index_header`'s `truncate` field G. Branden Robinson
2026/09/18 [bug #68705] inkscape produced pdfs fail using PDFPIC G. Branden Robinson
2026/09/18 [bug #68705] inkscape produced pdfs fail using PDFPIC Deri James
2026/09/17 [bug #68696] [tbl] emit break request at start of table region G. Branden Robinson
2026/09/17 [bug #68697] [tbl] emit argumentless `ti` request at start of table region, overlooked in commit 962f25ee85, 2026-04-30 G. Branden Robinson
2026/09/17 [bug #68685] [libbib] overallocates memory when index file claims implausibly large count of common words G. Branden Robinson
2026/09/17 [bug #68682] [libbib] out-of-bounds read caused by a missing lower bound check of integer G. Branden Robinson
2026/09/17 [bug #68682] [libbib] out-of-bounds read in caused by a missing lower bound check of integer G. Branden Robinson
2026/09/17 [bug #68681] [libbib] out-of-bounds read in `index_search_item::load()` when `pool` begins with null byte G. Branden Robinson
2026/09/17 [bug #68679] [PATCH] [libbib] uncontrolled allocation caused by missing bounds check on `index_header`'s `truncate` field G. Branden Robinson
2026/09/17 [bug #68703] [libbib,indxbib] ASAN reports alloc-dealloc-mismatches G. Branden Robinson
2026/09/17 [bug #68681] [libbib] out-of-bounds read in `index_search_item::load()` when `pool` begins with null byte G. Branden Robinson
2026/09/17 [bug #68679] [PATCH] [libbib] uncontrolled allocation caused by missing bounds check on `index_header`'s `truncate` field G. Branden Robinson
2026/09/17 [bug #68697] [tbl] emit argumentless `ti` request at start of table region, overlooked in commit 962f25ee85, 2026-04-30 G. Branden Robinson
2026/09/17 [bug #68697] [tbl] emit argumentless `ti` request at start of table region G. Branden Robinson
2026/09/17 [bug #68703] [libbib,indxbib] ASAN reports alloc-dealloc-mismatches G. Branden Robinson
2026/09/17 [bug #68703] [libbib,indxbib] ASAN reports alloc-dealloc-mismatches G. Branden Robinson
2026/09/13 [bug #68696] [tbl] emit break request at start of table region G. Branden Robinson
2026/09/13 [bug #68697] [tbl] emit argumentless `ti` request at start of table region G. Branden Robinson
2026/09/13 [bug #68697] [tbl] emit argumentless `ti` request at start of table region G. Branden Robinson
2026/09/13 [bug #68697] [tbl] emit argumentless `ti` request at start of table region G. Branden Robinson
2026/09/13 [bug #68696] [tbl] emit break request at start of translated table region G. Branden Robinson
2026/09/12 [bug #66295] [tbl] set up and use an environment for every TS/TE table region encountered Dave
2026/09/12 [bug #66295] [tbl] set up and use an environment for every TS/TE table region encountered Dave
2026/09/12 [bug #68696] [tbl] emit break request at start of translated table region Ingo Schwarze
2026/09/12 [bug #66242] [troff] generalize `-a` option (as `-A fmt`?) Dave
2026/09/12 [bug #68696] [tbl] emit break request at start of translated table region G. Branden Robinson
2026/09/09 [bug #68676] [groff] test script "src/roff/groff/tests/pdf-device-smoke-test.sh" fails since commit 744d3a8f6f, 2026-09-03 G. Branden Robinson
2026/09/09 [bug #68676] [groff] test script "src/roff/groff/tests/pdf-device-smoke-test.sh" fails since commit 744d3a8f6f, 2026-09-03 Deri James
2026/09/09 [bug #68667] [mm] should accept scaling units in indentation arguments to `BVL` and `VL`, fixing 1.24 regression Deri James
2026/09/08 [bug #68667] [mm] should accept scaling units in indentation arguments to `BVL` and `VL`, fixing 1.24 regression G. Branden Robinson
2026/09/08 [bug #57538] .ne is off by one in some macro packages even when using no other facilities of that package Dave
2026/09/08 [bug #68667] [mm] should accept scaling units in indentation arguments to list-beginning macros, fixing 1.24 regression G. Branden Robinson
2026/09/08 [bug #64466] [PATCH] [ms] poorly diagnosed diversion error G. Branden Robinson
2026/09/08 [bug #68667] [mm] should accept scaling units in indentation arguments to `BVL` and `VL`, fixing 1.24 regression G. Branden Robinson
2026/09/08 [bug #68676] [groff] test script "src/roff/groff/tests/pdf-device-smoke-test.sh" fails since commit 744d3a8f6f, 2026-09-03 G. Branden Robinson
2026/09/08 [bug #68667] [mm] should accept scaling units in indentation arguments to `BVL` and `VL`, fixing 1.24 regression Deri James
2026/09/08 [bug #68667] [mm] should accept scaling units in indentation arguments to `BVL` and `VL`, fixing 1.24 regression G. Branden Robinson
2026/09/08 [bug #68676] [groff] test script "src/roff/groff/tests/pdf-device-smoke-test.sh" fails since commit 744d3a8f6f, 2026-09-03 G. Branden Robinson
2026/09/06 [bug #67418] [PATCH] [hdtbl] Heidelberger table macro names `TH` and `TR` collide with ms, other full-service packages Dave
2026/09/06 [bug #61836] [PATCH] want a page resequencer for intermediate output Dave
2026/09/06 [bug #67418] [hdtbl] Heidelberger table macro names `TH` and `TR` collide with ms, other full-service packages Dave
2026/09/06 [bug #68671] [PATCH] [gropdf] default line thickness is inconsistent with grops Deri James
2026/09/05 [bug #68675] [pic] want grammar to "autobox" 'position' expressions to allow suffixing with 'corner' or 'reference-point' G. Branden Robinson
2026/09/05 Re: [bug #68675] [pic] want `define` keyword for eqn-style macro definitions Douglas McIlroy
2026/09/05 [bug #68671] [PATCH] [gropdf] default line thickness is inconsistent with grops G. Branden Robinson
2026/09/05 [bug #68671] [PATCH] [gropdf] default line thickness is inconsistent with grops Dave
2026/09/04 [bug #68675] [pic] want `define` keyword for eqn-style macro definitions G. Branden Robinson
2026/09/04 [bug #68676] [groff] test script "src/roff/groff/tests/pdf-device-smoke-test.sh" fails since commit 744d3a8f6f, 2026-09-03 G. Branden Robinson
2026/09/04 [bug #68676] [groff] test script "src/roff/groff/tests/pdf-device-smoke-test.sh" fails since commit 744d3a8f6f, 2026-09-03 G. Branden Robinson
2026/09/04 [bug #68671] [PATCH] [gropdf] default line thickness is inconsistent with grops G. Branden Robinson
2026/09/04 [bug #68671] [PATCH] [gropdf] default line thickness is inconsistent with grops G. Branden Robinson
2026/09/04 [bug #68671] [PATCH] [gropdf] default line thickness is inconsistent with grops G. Branden Robinson
2026/09/03 [bug #62916] list incompatible changes (and/or things to deprecate) under consideration for future groff releases Dave
2026/09/03 [bug #68671] [PATCH] gropdf default line width is wrong Dave
2026/09/03 [bug #64466] [PATCH] [ms] poorly diagnosed diversion error G. Branden Robinson
2026/09/03 [bug #68671] [PATCH] gropdf default line width is wrong Deri James
2026/09/02 [bug #68335] [man] implement new `LS` and `LE` macros for list managment, including inter-paragraph spacing control G. Branden Robinson
2026/09/02 [bug #68665] doc/groff.texi.in: cite Unicode source preferring Basic Latin code points for Roman numerals G. Branden Robinson
2026/09/02 [bug #68671] [PATCH] gropdf default line width is wrong G. Branden Robinson
2026/09/02 [bug #68671] [PATCH] gropdf default line width is wrong G. Branden Robinson
2026/09/02 [bug #68671] [PATCH] gropdf default line width is wrong G. Branden Robinson
2026/09/02 [bug #64466] [PATCH] [ms] poorly diagnosed diversion error G. Branden Robinson
2026/09/02 [bug #68671] [PATCH] gropdf default line width is wrong Deri James
2026/09/01 [bug #64466] [PATCH] [ms] poorly diagnosed diversion error G. Branden Robinson
2026/09/01 [bug #64466] [ms] poorly diagnosed diversion error Dave
2026/09/01 [bug #68668] [ms] want paired macros for designating a hyperlink, bracketing link text G. Branden Robinson
2026/09/01 [bug #58946] [ms] support automatic bookmarks/tags G. Branden Robinson
2026/09/01 [bug #64466] [ms] poorly diagnosed diversion error G. Branden Robinson
2026/09/01 [bug #68667] [mm] should accept scaling units in indentation arguments to list-beginning macros, fixing 1.24 regression G. Branden Robinson
2026/08/31 [bug #68665] groff.texi.in: document source for Unicode claim Dave
2026/08/29 [bug #68642] [troff] emits malformed JSON when dumping node produced by `\X` escape sequence G. Branden Robinson
2026/08/29 [bug #68658] [man] argumentless `IP` calls within compact lists should still apply inter-paragraph space G. Branden Robinson
2026/08/29 [bug #68656] [man] `LE` macro should break the line and reset paragraph line parameters even for "inline" lists G. Branden Robinson
2026/08/28 [bug #68658] [man] argumentless `IP` calls within compact lists should still apply inter-paragraph space G. Branden Robinson
2026/08/28 [bug #68658] [man] argumentless `IP` calls within compact lists should still apply inter-paragraph space G. Branden Robinson
2026/08/28 [bug #68552] [PATCH] [troff] memory corruption in `token::description()` in `TOKEN_NODE` case G. Branden Robinson
2026/08/28 [bug #68658] [man] argumentless `IP` calls within compact lists should still apply inter-paragraph space G. Branden Robinson
2026/08/28 [bug #68656] [man] `LE` macro should break the line and reset paragraph line parameters even for "inline" lists G. Branden Robinson
2026/08/28 [bug #68656] [man] `LE` macro should break the line and reset paragraph line parameters even for "inline" lists G. Branden Robinson
2026/08/26 [bug #68574] [grog] infer `-k` option if any input code point is non-ASCII G. Branden Robinson
2026/08/26 [bug #68578] doc/automake.mom: could detect (and resolve) more GNU troff warnings G. Branden Robinson
2026/08/26 [bug #68651] [UPGRADE] redesign HTML production G. Branden Robinson
2026/08/26 [bug #68651] [UPGRADE] redesign HTML production G. Branden Robinson
2026/08/26 [bug #68651] [UPGRADE] redesign HTML production G. Branden Robinson
2026/08/24 [bug #68642] [troff] emits malformed JSON when dumping node produced by `\X` escape sequence G. Branden Robinson
2026/08/24 [bug #68642] [troff] emits malformed JSON when dumping node produced by `\X` escape sequence G. Branden Robinson
2026/08/24 [bug #62264] [troff] string iteration handles escape sequences inconsistently (want `for` iterator request) G. Branden Robinson
2026/08/23 [bug #68512] [PATCH] [troff] `pchar` reports information about deleted special characters G. Branden Robinson
2026/08/23 [bug #68635] [grog] invalidly passes new `--debug` option to groff since commit b161e50e93, 2026-07-17 G. Branden Robinson
2026/08/23 [bug #68618] [troff] `stringup` and `stringdown` requests format excess arguments G. Branden Robinson
2026/08/22 [bug #68638] [grohtml,man] fix absurd indentation of synopses G. Branden Robinson
2026/08/22 [bug #68638] [grohtml,man] fix absurd indentation of synopses G. Branden Robinson
2026/08/22 [bug #68637] [grohtml, man, mdoc] support filling of subsection titles with bullet separation in navigation area G. Branden Robinson
2026/08/22 [bug #68636] [grohtml, man, mdoc] want subsection titles indented from section titles in navigation area G. Branden Robinson
2026/08/22 [bug #60233] [PATCH] doc/groff.texi: ambiguity in .tkf documentation G. Branden Robinson
2026/08/22 [bug #61998] [PATCH] doc/groff.texi: update Roman numeral info G. Branden Robinson
2026/08/22 [bug #50770] [PATCH] tmac/pspic.tmac: `PSPIC` macro call near bottom of page causes unwarranted page break G. Branden Robinson
2026/08/22 [bug #68570] [PATCH] [tbl] SEGV when table format description consists only of horizontal span column classifiers G. Branden Robinson
2026/08/22 [bug #68537] [ms] automatically numbered footnotes don't work right in tbl(1) tables G. Branden Robinson
2026/08/22 [bug #68635] [grog] invalidly passes new `--debug` option to groff since commit b161e50e93, 2026-07-17 G. Branden Robinson
2026/08/22 [bug #68538] [sboxes] device control command gets rendered as text G. Branden Robinson
2026/08/22 [bug #68635] [grog] invalidly passes new `--debug` option to groff since commit b161e50e93, 2026-07-17 G. Branden Robinson
2026/08/17 [bug #68621] [mm] rename `EOPf`, `TPh` to `EOPpf`, `TPph` G. Branden Robinson
2026/08/17 [bug #68620] [mm] migrate space between EC/EX/FG/TB captions from hard logic to `Cap{ec, ex, fg, tbl}` strings G. Branden Robinson
2026/08/17 [bug #68619] [mm] rename `Hps`, `Hps1`, `Hps2` registers to `Hsp`, `Hspminor`, `Hspmajor` G. Branden Robinson
2026/08/16 [bug #68618] [troff] `stringup` and `stringdown` requests format excess arguments G. Branden Robinson
2026/08/16 [bug #68618] [troff] `stringup` and `stringdown` requests format excess arguments G. Branden Robinson
2026/08/16 [bug #68618] [troff] `stringup` and `stringdown` requests format excess arguments G. Branden Robinson
2026/08/09 [bug #68566] consider incorporating "epsf.tex" via Gnulib Bruno Haible
2026/08/09 [bug #68261] [man] offer advice on (not) using Courier/monospace/typewritten font in man pages G. Branden Robinson
2026/08/09 [bug #68566] consider incorporating "epsf.tex" via Gnulib G. Branden Robinson
2026/08/09 [bug #68601] [eqn] neqn: doesn't work when built using Busybox sed(1) G. Branden Robinson
2026/08/09 [bug #68585] [eqn, pic, tbl] code not "ASAN_OPTIONS=alloc_dealloc_mismatch=1" clean G. Branden Robinson
2026/08/09 [bug #68584] ChangeLog*: doubled word typos G. Branden Robinson
2026/08/09 [bug #68601] [eqn] neqn: doesn't work when built using Busybox sed(1) G. Branden Robinson
2026/08/06 [bug #68597] doc/ms.ms.in: document does not render correctly G. Branden Robinson
2026/08/06 [bug #68597] doc/ms.ms.in: document does not render correctly Morten Bo Johansen
2026/08/06 [bug #68566] consider incorporating "epsf.tex" via Gnulib G. Branden Robinson
2026/08/06 [bug #68566] consider incorporating "epsf.tex" via Gnulib G. Branden Robinson
2026/08/06 [bug #68601] [eqn] neqn: doesn't work when built using Busybox sed(1) G. Branden Robinson
2026/08/06 [bug #68600] [troff] make `--version` output report font and macro search paths G. Branden Robinson
2026/08/06 [bug #68600] [troff] make `--version` output report font and macro search paths G. Branden Robinson
2026/08/06 [bug #68543] [man] want `EF` string or similar for user-configurable "example" font family G. Branden Robinson
2026/08/06 [bug #68597] doc/ms.ms.in: document does not render correctly G. Branden Robinson
2026/08/06 [bug #68597] doc/ms.ms.in: document does not render correctly G. Branden Robinson
2026/08/06 [bug #68597] doc/ms.ms.in: document does not render correctly in groff 1.25.0.rc2 Deri James
2026/08/05 [bug #68597] doc/ms.ms.in: document does not render correctly in groff 1.25.0.rc2 Morten Bo Johansen
2026/08/05 [bug #68597] doc/ms.ms.in: document does not render correctly in groff 1.25.0.rc2 Deri James
2026/08/05 [bug #68597] doc/ms.ms.in: document does not render correctly in groff 1.25.0.rc2 Morten Bo Johansen
2026/08/05 [bug #68597] doc/ms.ms.in: document does not render correctly in groff 1.25.0.rc2 Deri James
2026/08/05 [bug #68597] doc/ms.ms.in: document does not render correctly in groff 1.25.0.rc2 Morten Bo Johansen
2026/08/04 [bug #68597] doc/ms.ms.in: document does not render correctly in groff 1.25.0.rc2 G. Branden Robinson
2026/08/04 [bug #68597] The ms.ms document does not render correctly with latest git version. Deri James
2026/08/04 [bug #68597] The ms.ms document does not render correctly with latest git version. Morten Bo Johansen
2026/08/03 [bug #68567] [PATCH] [devpdf] build on Manjaro Linux 23 finds wrong/inadequate URW fonts, causing test failure Bruno Haible
2026/08/02 [bug #68584] ChangeLog*: doubled word typos G. Branden Robinson
2026/08/02 [bug #68585] [eqn, pic, tbl] code not "ASAN_OPTIONS=alloc_dealloc_mismatch=1" clean G. Branden Robinson
2026/08/02 [bug #68567] [PATCH] [devpdf] build on Manjaro Linux 23 finds wrong/inadequate URW fonts, causing test failure G. Branden Robinson
2026/08/02 [bug #68261] [man] offer advice on (not) using Courier/monospace/typewritten font in man pages Dave
2026/08/02 [bug #68584] ChangeLog*: doubled word typos G. Branden Robinson
2026/08/02 [bug #68585] [eqn, pic, tbl] code not "ASAN_OPTIONS=alloc_dealloc_mismatch=1" clean Bruno Haible
2026/08/02 [bug #68585] [eqn, pic, tbl] code not "ASAN_OPTIONS=alloc_dealloc_mismatch=1" clean G. Branden Robinson
2026/08/02 [bug #68585] [pic, tbl] code not "ASAN_OPTIONS=alloc_dealloc_mismatch=1" clean Bruno Haible
2026/08/02 [bug #68585] [pic, tbl] code not "ASAN_OPTIONS=alloc_dealloc_mismatch=1" clean Bruno Haible
2026/08/02 [bug #68585] [pic, tbl] code not "ASAN_OPTIONS=alloc_dealloc_mismatch=1" clean Bruno Haible
2026/08/01 [bug #68586] [troff] refactor `read_identifier()` to populate its argument and return `bool` G. Branden Robinson
2026/07/31 [bug #68544] [pic] heap buffer overread via large macro argument index G. Branden Robinson
2026/07/31 [bug #68544] [pic] heap buffer overflow via large macro argument index G. Branden Robinson